There are 490 raions in 24 oblasts and the Crimea autonomous republic of Ukraine. The number of raions per region (oblast and autonomous republic) varies between 11 and over 20. The average area of a Ukrainian raion is 1,200 km2 (463 sq mi). The average population is 52,000.

The city municipalities of regional (oblast) significance (abbr. MOZ) have an independent of raion jurisdiction. The number of such cities (MOZ) varies from one region to another. In the list below they are listed separately as well. Each raion consist of urban (towns) or rural (villages) smaller municipalities that are administrated by their local councils (selsovet, silrada) and subordinated to raion's or city's administrations. They are the lowest level of administrative division.

Some cities of oblast subordination along with the two cities of national significance (Kiev and Sevastopol) are also divided in "city raions". "City raions" have their own local administration and are subordinated directly to a city. They may contain other cities, towns, and villages.

Note: region is a general term referring to oblasts, the republic[1] and cities with special status.[1] The population recorded in the table is listed in accordance to the latest census taken in the country, Ukrainian Census (2001). Asterisk (*) identifies raions with administrative centers located outside of them (usually separately incorporated).